#include <sstream>
#include <iostream>
#include <string>

class Time {
	public:
	string whatTime (int seconds) {
		int hourrem;
		int minrem;
		hourrem = seconds%3600;
		int hours = (seconds-hourrem)/3600;
		minrem = hourrem%60;
		int mins = (hourrem-minrem)/60;
		int sec = minrem;
		stringstream sshours;
		sshours << hours;
		stringstream ssmins;
		ssmins << mins;
		stringstream sssec;
		sssec << sec;
		string thetime = sshours.str() + ":" + ssmins.str() + ":" + sssec.str();
		return thetime;
	}
}